题目内容
计算题:
(1)-
×(-6)+
÷(-
);
(2)-14+[1
-(
+
-
)×24]÷5.
(1)-
| 2 |
| 3 |
| 7 |
| 4 |
| 7 |
| 8 |
(2)-14+[1
| 1 |
| 24 |
| 3 |
| 8 |
| 1 |
| 6 |
| 3 |
| 4 |
(1)-
×(-6)+
÷(-
)
=4+(-2)
=2;
(2)-14+[1
-(
+
-
)×24]÷5
=-1+[1
-
×24-
×24+
×24]÷5
=-1+[1
-9-4+18]÷5
=-1+
×
=-1+
=
.
| 2 |
| 3 |
| 7 |
| 4 |
| 7 |
| 8 |
=4+(-2)
=2;
(2)-14+[1
| 1 |
| 24 |
| 3 |
| 8 |
| 1 |
| 6 |
| 3 |
| 4 |
=-1+[1
| 1 |
| 24 |
| 3 |
| 8 |
| 1 |
| 6 |
| 3 |
| 4 |
=-1+[1
| 1 |
| 24 |
=-1+
| 145 |
| 24 |
| 1 |
| 5 |
=-1+
| 29 |
| 24 |
=
| 5 |
| 24 |
练习册系列答案
相关题目